Yes, he is (according to the literal question. I should say "he was", because he's dead since 1989). Only male princes could (and can) inherit the Japanese Imperial throne. Also, Hirohito was married to a female (Nagako Kuni) and had six children with her.
Emperor Hirohito.
Hirohito was a monarch.
Hirohito was a monarch.
no Hirohito didn't have any siblings
You can probably find pictures of Hirohito by typing "Hirohito pictures" into the Google search bar.
Hirohito was the Emperor of JapanHirohito was the Emperor of Japan
Hirohito was born on April 29, 1901.
Hirohito Ōta was born in 1970.
Hirohito Honda was born on September 29, 1979, in Kanagawa, Japan.
Emperor Showa, or better known as Hirohito.
Hirohito was on the side of the axis powers
Hirohito Nakamura was born on 1974-05-09.